The HI 2151/30WC is a compact, multipurpose, microprocessor based weight controller. The controller is used for a wide variety of process weighing applications including batching, blending, check weighing, filling/dispensing, force measurement, level by weight and weight rate monitoring. As a stand-alone product ,the HI 2151/30WC can control as many as eight set point relays, and transmit data via analog, serial and BCD communications. Data is displayed alpha-numerically on the six digit fourteen segment LED display and graphically on the 30 segment bar graph display. Weight values can be based on either Net, Gross, Rate-of-Change (ROC), Peak Hold or Totalized weight values in pounds or kilograms. The weight controller can also be used as a front end for a control system, transmitting weight values via a standard operator selectable serial port (RS-232, RS-422/485) to programmable logic controllers (PLC’s), computers, and printers. An optional Allen Bradley Remote I/O, Analog and PROFIBUS interface is available for communication to programmable logic controllers. The 20 bit analog to digital converter in the weight controller updates twenty (20) times per second and is capable of 985,000 counts of display resolution. This gives the instrument the ability to tolerate large “dead” loads, over sizing of load cells/sensors and still have sufficient resolution to provide accurate weight measurement and control. Commands can be entered into the instrument from the communication ports or locally from a tactile feel sixteen button front panel keypad. A portion of the keys can be locked out to limit operator access and protect data. A limited number of commands can be entered through a rear Remote Functions connector. Installation Choices
Panel Mount HI 2151/30WC
Wall Mount Model HI 2151/30WC-WS
Remote Mount Model HI 2151/30WC-RM
Blind Remote Mount HI 2151/30WC-BR Output Device Options Analog Output (-B1)
The Analog Output is configured from the front panel or the serial port and set up by jumpers on the printed circuit card. The option allows the transmission of Gross, Net, Optional ROC, Peak or Total weight as 0-5V, 0-10V, 0-20mA or 4-20mA (or the reverse of these), and makes it possible to span these ranges over a portion of the weight data. Resolution is 16,000 counts, or the number of display counts available in the range selected, whichever is less. Two analog optional boards can be installed in each instrument. Both voltage and current data are available simultaneously. Binary Coded Decimal (BCD) Output (-B2)
This BCD Option provides six digits of parallel weight data representing Net, Gross, Tare and the present front panel display. If all types of output data are requested, they will appear one after the other, ten milliseconds apart. The BCD option provides a 37 pin D-subminiature connector on a 6 inch cable. Binary Coded Decimal (BCD) Output (-B5)
This BCD option provides six digits of parallel weight data representing Net, Gross, Tare and The Present Front Panel Display. If all types of output data are requested, they will appear one after the other, ten milliseconds apart. The BCD option provides a 40 pin connector on a 60 inch cable for use with either the optional - B6 or -B7 external termination boards. BCD Single Termination Card (-B6)
The BCD Single Termination Card is an optional external interface point for a single BCD port signal line. The card is designed for use with a single HI-2151/30WC-B5 instrument. BCD Quad Termination Card (-B7)
The BCD Quad Termination Card is an optional external interface point for up to four sets of BCD port signal lines. All terminal positions accept 20 to 26 gauge cable sizes. Additional terminal boards may be interconnected to allow multiple BCD ports to exist
in a tri-state arrangement. Remote I/O (RIO) Interface to the Allen-Bradley Network (-B8)
The RIO port allows bi-directional communications with Allen-Bradley Programmable Logic Controllers (PLC) and Small Logic Controllers (SLC). The HI 2151/30WC represents a quarter rack of discrete I/O (32 bits in the Logic Controllers output and input image files) to the Logic Controller and supports both discrete and block transfers of data. It can support up to 230.4 Kbaud transfer rates. Binary Coded Decimal (BCD) Output (-B9)
This option provides six digits of parallel weight data representing Net, Gross, Tare and the present front panel display. If all types of output data are requested, they will appear, one after the other, ten milliseconds apart. This option provides a 24 inch cable for use with the HI 2151/30WC-WS wall mount controller. PROFIBUS Interface Option (-B12)
Allows bi-directional communications to Profibus (Process Fieldbus) products including those made by Siemens, GE Fanuc and Texas Instruments. This interface supports PROFIBUS-DP (Decentralized Periphery) and processes both Selectable Predetermined and Block transfer commands. It supports up to 12 Mbaud transfer rates. Dynamic Data Exchange (DDE) (-B14)
Allows bi-directional communications with a PC over the serial port using Windows® 3.x, Windows® 95, Windows® NT. The DDE links the HI 2151 series weight controllers to a Windows® based application software such as: Wonderware®, Visual Basic, Excel®, Lotus 1-2-3, or Quattro Pro®. Control Options
Peak Hold (-C1)
Displays and stores the highest Gross weight value measured until cleared by the front panel Key pad or from a remote command. This option is generally used in testing to determine peak forces a product or material can withstand. It can also be used to track the highest force applied to the scale. Rate-of-Change (ROC) (-C2)
The ROC option measures and displays the rate at which a material enters or is dispensed from the scale over a period of time. To develop ROC data, a register is used that is 21 entries in length. New weight values are inputted to the register at the rate of 1/20th of the time base. The first register is subtracted from the 21st Register. The 21st register is one time base older than the 1st register. The time frame can be set to units per second, minute or hour. A time base of discrete values is selectable from 1 to 1800. Set Point Options
TTL(Transistor - Transistor Logic) Level Output (-D1)
Provides six TTL level outputs, rated at 500 milliamps per line. A mating connector with eight 24 gauge un-terminated wires, 60 inches long is also provide. External Setpoint Relays Card (-D2)
This externally mounted card is equipped with six solid state triac relays. Individual relays can be configured as form A or form B by an on board dip switch. Each can be programmed to respond to the standard Net or Gross modes of operation or the optional ROC, Totalizer or peak hold modes. Each have individual setpoint, preact and deadband parameters. A 60 inch interface cable is provided. This option should not be used with the wall mount enclosure. External Setpoint Relays Card (-D3)
The same as the -D2 option except that the length of the cable provided is six inches. This is designed to mounted in the HI 2151/30WC-WS-D3 wall mount enclosure. Miscellaneous Options
240 VAC 50/60 Hz Input Voltage (-E2)
This is a factory configuration only.
NIST/NTEP Certification Mode Kit (-E3 except for -F4 wall mount)
The HI 21251/30WC is approved for National Institute of Standards and Technology (NIST) applications formally called the National Bureau of Standards (NBS), and certified under the National Type Evaluation Program (NTEP) for up to 10,000 counts when the NIST mode is activated. This option is required when products are to be directly sold based on weight readings of the scale. This kit includes special screws for sealing the instrument, a label plate, a NEMA 4 gasket and a NIST label. Portable Display and Keypad (-E4)
The HI 2151/30XX-E4 option is used for local set-up, calibration and display of the blind remote version instrument, model HI 2151/30WC-BR. Intrinsic Barrier Assembly (-F1, -F3 thru -F7)
The Intrinsic Barrier Assembly Option is used only with the wall mount Model HI 2151/30WC-WS. The option provides safety for Class I, II and III, Division I applications. |
